STRUCTURAL STUDY OF AMORPHOUS MG50NI30LA20 ALLOY BY THE ANOMALOUS X-RAY-SCATTERING (AXS) METHOD

被引：32

作者：

MATSUBARA, E

TAMURA, T

WASEDA, Y

INOUE, A

KOHINATA, M

MASUMOTO, T

机构：

[1] Research Institute of Mineral Dressing & Metallurgy (SENKEN), Tohoku University

[2] Institute for Materials Research, Tohoku University

来源：

MATERIALS TRANSACTIONS JIM | 1990年 / 31卷 / 03期

关键词：

absorption edge; amorphous; anomalous X-ray scattering; environmental radial distribution function; glass transition; radial distribution function; rare earth; supercooled liquid; transition metal;

D O I：

10.2320/matertrans1989.31.228

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The structure of a new amorphous Mg50Ni30La20 alloy, indicating an extremely wide supercooled liquid region, has been investigated by the anomalous X-ray scattering (AXS) method. A characteristic pronounced prepeak was observed at Q= 14 nm-1 in the intensity profile. The environmental radial distribution function (RDF) for Ni was determined and the ordinary RDF was also obtained using the Mo Ka-radiation for comparison. The intensity profiles and RDFs suggest that Mg atoms form strong local ordering clusters with the other constituent elements Ni and La in this particular amorphous alloy. © 1990, The Japan Institute of Metals. All rights reserved.

引用

页码：228 / 231

页数：4

共 22 条

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